http://www.sitemapdoc.com/
Online tool: will create XML Sitemaps with up to 500 URLs; this is often
sufficient for smaller sites
iGooMap
http://www.pointworks.de
Comprehensive XML Sitemap generator for the Mac platform
Google Sitemap Generator
http://code.google.com/p/googlesitemapgenerator
Google’s own Python-based XML Sitemap generator
SiteMap Generator
http://wonderwebware.com/sitemap-generator
Freeware XML Sitemap generator for the Windows OS
Mapsbuilder
http://www.mapsbuilder.com
XML Sitemap validators tools
Validomehttp://www.validome.org/google/validate
Can validate XML Sitemaps as well as XML Sitemap Index files;
free
XML Sitemap Validator
http://www.xml-sitemaps.com/validate-xml-sitemap.html
Free online validation for XML Sitemaps
Google Sitemap Checker
http://www.webmasterwebtools.com/sitemap-validation
Another free online validator